PTCB Certified Pharmacy Technician (PTCE)MedicationsEasy
A pharmacy technician is reviewing a patient's medication profile and notices a prescription for 'sulfamethoxazole/trimethoprim DS, take 1 tablet by mouth twice daily'. The patient also has a listed allergy to 'sulfa drugs'. What is the most appropriate action for the technician?
- AContact the prescriber to confirm the allergy information.
- BAlert the pharmacist immediately due to a potential drug allergy.
- CDispense the medication as prescribed, as sulfamethoxazole/trimethoprim is not a true sulfa drug.
- DAdvise the patient to take the medication with plenty of water to prevent an allergic reaction.
Show answer & explanationAnswer & explanation
Correct answer: B. Alert the pharmacist immediately due to a potential drug allergy.
Sulfamethoxazole is a sulfonamide antibiotic, and a listed allergy to 'sulfa drugs' indicates a potential adverse reaction to this medication. The technician must prioritize patient safety by alerting the pharmacist immediately.
Why the other options are wrong
- A. While contacting the prescriber might be necessary, the immediate action is to alert the pharmacist, who can then decide on the next steps.
- C. This is incorrect; sulfamethoxazole is a sulfonamide antibiotic and falls under the 'sulfa drug' allergy umbrella.
- D. Taking with water does not prevent an allergic reaction to a sulfa drug.
Sulfa Drug Allergy
An adverse immune response to medications containing a sulfonamide chemical group, commonly seen with certain antibiotics and other drugs.
- Sulfonamide antibiotics are common culprits (e.g., sulfamethoxazole/trimethoprim).
- Reactions can range from rash to severe anaphylaxis.
- Cross-reactivity with non-antibiotic sulfonamides is rare but possible.
Memory trick: Allergies Alert Pharmacist Immediately